Babbitting machine



A. E, PEARSON.

B'ABBITTINGMACHINE.

APPLICATION FILED NOV.26, 1921.

Patented Sept. 19, 1922..

L SHEET$S'HEET l- INVENTOR AUGUST [PEARSON BY A. E; PEARSON.

BABBIT TING MACHINE. APPLICATIONHLED NOV-26', 192:.

l gg 'm'z Patented Sept. 19, 1922.

2 SHEETSSHEET 2- :NVENTOR AUGU 5T wmso concentrically tov the centre ofthe orifice 5. 8 is a mandril supporting member which Patented Sept. 19,1922.

earerrr BABBiETTING MACHINE.

To all whom 2'15 mag concern Be it known that 1, AUGUST Er c PEARSON, acitizen of the United States of America, and a resident of the city oiToronto, in the county of York, in the Province of Ontario, Canada, haveinvented certain new and use ful Improvements inv Babbitting Machines,of which the following is the specification.

My invention. relates to improvements in babbitting machines, and theobject of the invent on is to devise a simple device for babbitting sucharticles as bearing caps and such as may be readily adaptable for po ning the metal under varying conditions, and it consists essentially ofthe arrangement and construction of parts as hereinafter moreparticularly explained.

Fig. l is a. front elevation of my babbitting machine.

Fig.2 is a plan view of my machine Fig. 3 is a side elevation of mymachine.

Fig. l is a front elevation of the base casting, andswinging supportcarried by-the base casting.

Fig. 5 is a plan sectional view, .the left hand side showing the cap tobe babbitted in position, and the right hand sideot the view showing theparts with the cap removed.

Fig. 6 is across sectional view through Fig. 1, taken on line 66 andlooking in the direction of arrow.

Fig. 7 is an enlarged sectional detail through the bearing cap, mandriland end blocks showing the babbitt poured into the cap.

In the drawings like characters of reference indicate correspondingparts in each figure.

1 indicates the base casting which com-v prises a. base piece 2 fromwhich extend vertical standards 3 and 4. At the top of these standardsis located an orifice 5. 6 is Y an arm extendlng rearwardly from eachstandard 3 and 4c, such arm being provided with a slot 7 the arm andslot being curved comprises a base plate 9 inwhich is located.

the recesslO forming the bed for the mandril as, hereinafter described,and. with side. guides 11 for a purpose which will here-- inafterappear. y

The mandril supporting member also comprises lugs 12 which extend upwardfrom each. side of the base plate 9 at theinside of Application filedNovember 26, 1921. Serial No. 517,938.

each. standard 3 and l. The lugs 12 are also provided with orifices 13through which and each orifice 5 extends a bolt 14 thereby pivotallysupporting themandril base upon the standards 3 and l. 15 are a'ms whichextend from the base plate 9 at each side thereofclosely adjacent to thearms 6 and sinilar in form to such arms.

i6 are wing nuts which are screwed into orifices formed in the arms 15and extend through the slot 7 so as to clamp ea h pair 0]? arms 15 and6. together. i

The base plate 9 is also provided with a pair of. horizontally d sposedlugs 17 and. 1:8, a pair of lugs 17 and 18 being disposed at each sideof the base plate 9. .ilach portion or the mandril support forming theguide ways ll is cut away intermediately of its length as indicated at19, see Fig. i, so as to leave an opening 20 located between the baseplate .9 and each standard and 4.

21 are arms which are swun between the extending through the bat-l: ofthe manoril support 9. 24; is-the m-andril proper which is. n the formor a semi-cyiindrical body socured to, or formed integral with the base22. 25 is a groove formed in the outer face of the inandril 24 at itsupper end, the upper portion being flared outward as indicated at 26 soas to receive the molten babbitt which is poured into the groove.

28 is a bearing cap of usual construction provided with the bosses 29having bolt orifices 30. 31 are orifices formed in the mandrilbase 22 inaline with the orifices 30. 95

The bearing cap 28 fits around the mandril 24 so as to leave a space toreceive the babbitt.

32 and 33 are blocks which are similar in form to the bearing cap 28 butconsiderably 10o 36 and 37 are semi-circular recesses formed 105 in theblocks 32 and 33 into which the babbitt enters when poured so as to formWhat is known as the fillet.

36 and 37 are semi-circular grooves formed concentric to the aforesaidrecesses 110 36 and 37 The inner edge of each groove is substantiallyflush with the outer diameter of the bearing cap 28.

These grooves are filled with a fibrous substance such as asbestos wool,this wool overhanging the division between the cap 28 and the. blocks 32and 33 so as to prevent theleakage of babbitt. V

38 and 39 are rods each of which are provided at one end with a handle40 and at its opposite or inner end with an inturned por: tion 41 whichpasses through the orifices 3O and'31. The inturned portion 41 isprovided with an enlargement 42 which bears against the top of the boss29 of the cap 28.

43 and 44 are levers which are pivotally carried upon the ends of theturned portions of the arms 21.. The inner or operative ends of thelevers bear against the enlargements 42 and are located between thestandards 4 and 5 and therods38 and 39. i

45 are levers pivoted between the lugs 46 carried by the mandril support8. The handle of each of these levers is spring held outward by a spiralspring 47. The opposite ends'of the levers 45 extend in the operativeposition over the rods 38 and 39 to lock the inturned ends of the rodsin the orifices 30 and 31.

The mandril support 8 is provided with a foot plate 48 from which extendhollow bosses 49 and 50 in which are held spiral springs 51. The springs51 bear against the lower end of the block 33 forming a support for thesame.

52Yis a pull rod which extends through an orifice formed in the footplate 48 and is secured at its upper end in the block 33. The pull rod52 is operated either manually or by any other suitable form of'footmechanism.

Having described the principal parts involved in my invention, I willbriefly describe the operation of the same.

When it is desired to babbitt a cap, the block 32 is lifted upward sothat the flanges 34 slide out of the guide ways 11, thereby removing theblock.

After this has been done, the wing nuts 16 are loosened and the mandrilsupport swung to a horizontal position, the wing nuts being then againtightened so'as to hold the mandril 24 and its support in a horizontalposition ready to receive a bearing cap. As the mandrilsupport is swungto a horizontal position the arms 21 are freed so that they swingoutward upon their pivot carrying the levers 43 and 44 outward anddownward clear of the mandril and its support.

In order to place the cap 28 in position, the rods 38 and 39 areinserted in the orifices 30 of the cap, and the cap lifted by means ofthe rods 38 and 39 into position upon the upper endof theblock 33 so asto fit around the mandril 24 and against the outer face of the thelevers 45. It will be noted that each of the levers 45 is provided witha curved outer end 45*. As the rods 38 and 39 are swung beneath thelevers 45 they engage the curved portions 45 so as'to force the levers45 outward against the pressure of the springs 47 as the rods 38 and 39enter beneath the levers.

The block 32 is then replaced and the grooves 36 and 37 X filled withasbestos fibre so as to pack the joints between the blocks 32 and 33 andthe cap 28. If the cap 28is provided with oil holes or like orifices,the babbitt may be poured through these when the cap is in thehorizontal position above described. If however it is necessary to pourthe babbitt into the cap "endw'ise, the wing nuts'16 are again releasedand the mandril support swung either to a vertical position orv anangular'position, the angle being decided upon according to theconditions and by actual test.

When the cap has been placed in position as before described, the moltenbabbitt is then poured into the groove 25 flowing from thence into spacebetween the cap andthe mandril and into the recesses 36 and 37.

In order to remove the cap after it has been babbitted, the block 32 isfirst removed then the rods 38 and 39, the block 33 forced downward andthe levers 43 and 44 brought.

as it is then necessary to withdraw the block 33 so as to carry thelower fillet out of the recess 37 before the cap can be lifted.

From this description it will be seen that I have devised a very simpleform of babbitting machine which is adaptable for use under allcircumstances and conditions found in babbitting of caps and likearticles.

What I claim as my invention is:

. 1. In a babbitting machine, a mandril sup ported upon a suitablestructure, guideways located in each side of the mandril, a resilientlysupported lower block engaging the lower end of the mandril and slidablewithin the guideways, an upper block also freely slidable within theguideways and restin upon the upper end of the bearing cap, an a leversupport for the cap adapted to eject the cap and upper block from theguideways when the lower block is withdrawn against The rods thepressure of the resilient supporting means.

2. A babbitting machine comprising a base forming a mandril support, ase1nicylindrical mandril carried by the base, guide Ways located at eachside of the man dril, a block slidably held in the guide ways andadapted to bear against each end of the cap when in position surroundingthe mandril, a pair of rods each having an inturned end adapted to fitinto a bolt orifice of the cap, a pivoted spring pressed lever, havingan outturned end pivotally carried upon the mandril support and adaptedto extend over the rods when in their operative position.

3. A babbitting machine comprising a base provided. with side standardshaving bearing orifices at their upper ends and arms extending from thestandards and having slots therein concentric with the centres of eachorifice, a mandril support provided with lugs, pivot bolts extendingthrough the orifices of the standards and the lugs, arms car- &

ried by the mandril support, a locking bolt extending through each ofthe aforesaid slots into the arms of the mandril support, asemi-cylindrical mandril carried by the support having a babbitt pouringgroove at its upper end, guide Ways located at each side of the mandrilsupport, blocks slidably carried in the guide ways and adapted to bearagainst each end of the cap when in position around the mandril,swinging arms carried by the man dril support at each side, ejectinglevers carried by the arms, rods having inturned ends entering the boltorifices of the cap and each having an enlargement bearing against thecorresponding boss of the cap, and against which the operative ends ofthe levers are adapted to bear, a spring pressed locking lever carriedby the mandril support and extending over each rod, and a yieldablesupport over the lowermost block.

AUGUST ERIC PEARSON.

